refactor: move meta plugin finalization logic into meta plugins

Co-authored-by: aider (openai/andrew/openrouter/qwen/qwen3-coder) <aider@aider.chat>

src/meta_plugin.rs

@@ -1,12 +1,12 @@
 use anyhow::Result;
 use std::io;
 use std::io::Write;
+use rusqlite::Connection;
 
 pub mod program;
 pub mod digest;
 pub mod system;
 
-
 use crate::meta_plugin::program::MetaPluginProgram;
 use crate::meta_plugin::digest::{DigestSha256MetaPlugin, ReadTimeMetaPlugin, ReadRateMetaPlugin};
 use crate::meta_plugin::system::{CwdMetaPlugin, BinaryMetaPlugin, UidMetaPlugin, UserMetaPlugin, GidMetaPlugin, GroupMetaPlugin, ShellMetaPlugin, ShellPidMetaPlugin, KeepPidMetaPlugin, HostnameMetaPlugin, FullHostnameMetaPlugin};
@@ -57,6 +57,22 @@ pub trait MetaPlugin {
     fn program_info(&self) -> Option<(&str, Vec<&str>)> {
         None
     }
+    
+    // Initialize with database connection
+    fn initialize(&mut self, _conn: &Connection, _item_id: i64) -> Result<()> {
+        Ok(())
+    }
+    
+    // Save metadata to database
+    fn save_meta(&self, conn: &Connection, item_id: i64, value: String) -> Result<()> {
+        let meta = crate::db::Meta {
+            id: item_id,
+            name: self.meta_name(),
+            value,
+        };
+        crate::db::store_meta(conn, meta)?;
+        Ok(())
+    }
 }
 
 pub fn get_meta_plugin(meta_plugin_type: MetaPluginType) -> Box<dyn MetaPlugin> {
@@ -83,4 +99,3 @@ pub fn get_meta_plugin(meta_plugin_type: MetaPluginType) -> Box<dyn MetaPlugin>
         MetaPluginType::FullHostname => Box::new(FullHostnameMetaPlugin::new()),
     }
 }
-